CMS 3D CMS Logo
Public Types | Public Member Functions | Private Member Functions | Private Attributes

ElectronSeedGenerator Class Reference

#include <ElectronSeedGenerator.h>

List of all members.

Public Types

typedef
TransientTrackingRecHit::ConstRecHitPointer 		ConstRecHitPointer
typedef edm::OwnVector
< TrackingRecHit > 		PRecHitContainer
typedef
TransientTrackingRecHit::RecHitContainer 		RecHitContainer
typedef
TransientTrackingRecHit::RecHitPointer 		RecHitPointer

Public Member Functions

 ElectronSeedGenerator (const edm::ParameterSet &)
void run (edm::Event &, const edm::EventSetup &setup, const reco::SuperClusterRefVector &, const std::vector< float > &hoe1s, const std::vector< float > &hoe2s, TrajectorySeedCollection *seeds, reco::ElectronSeedCollection &)
void setupES (const edm::EventSetup &setup)
 ~ElectronSeedGenerator ()

Private Member Functions

void addSeed (reco::ElectronSeed &seed, const SeedWithInfo *info, bool positron, reco::ElectronSeedCollection &out)
bool prepareElTrackSeed (ConstRecHitPointer outerhit, ConstRecHitPointer innerhit, const GlobalPoint &vertexPos)
void seedsFromRecHits (std::vector< std::pair< RecHitWithDist, ConstRecHitPointer > > &elePixelHits, PropagationDirection &dir, const GlobalPoint &vertexPos, const reco::ElectronSeed::CaloClusterRef &cluster, reco::ElectronSeedCollection &out, bool positron)
void seedsFromThisCluster (edm::Ref< reco::SuperClusterCollection > seedCluster, float hoe1, float hoe2, reco::ElectronSeedCollection &out)
void seedsFromTrajectorySeeds (const std::vector< SeedWithInfo > &elePixelSeeds, const reco::ElectronSeed::CaloClusterRef &cluster, float hoe1, float hoe2, reco::ElectronSeedCollection &out, bool positron)

Private Attributes

edm::InputTag beamSpotTag_
unsigned long long cacheIDCkfComp_
unsigned long long cacheIDMagField_
unsigned long long cacheIDNavSchool_
unsigned long long cacheIDTrkGeom_
double deltaPhi1Coef1_
double deltaPhi1Coef2_
float deltaPhi1High_
float deltaPhi1Low_
float deltaPhi2B_
float deltaPhi2F_
float deltaZ1WithVertex_
bool dynamicphiroad_
bool fromTrackerSeeds_
float highPtThreshold_
float lowPtThreshold_
PixelHitMatcher * myMatchEle
PixelHitMatcher * myMatchPos
float nSigmasDeltaZ1_
float phiMax2B_
float phiMax2F_
float phiMin2B_
float phiMin2F_
PTrajectoryStateOnDet * pts_
PRecHitContainer recHits_
float sizeWindowENeg_
edm::Handle< reco::BeamSpot > theBeamSpot
TrajectorySeedCollection * theInitialSeedColl
edm::ESHandle< MagneticField > theMagField
const MeasurementTracker * theMeasurementTracker
std::string theMeasurementTrackerName
const NavigationSchool * theNavigationSchool
PropagatorWithMaterial * thePropagator
const edm::EventSetup * theSetup
edm::ESHandle< TrackerGeometry > theTrackerGeometry
KFUpdator * theUpdator
edm::Handle< std::vector
< reco::Vertex > > 		theVertices
TrajectoryStateTransform transformer_
bool useRecoVertex_
edm::InputTag verticesTag_

Detailed Description

Class to generate the trajectory seed from two hits in the pixel detector which have been found compatible with an ECAL cluster.

Author:
U.Berthon, C.Charlot, LLR Palaiseau
Version:
1st Version May 30, 2006

Description: Top algorithm producing ElectronSeeds, ported from ORCA

Implementation: future redesign...

Definition at line 48 of file ElectronSeedGenerator.h.

Member Typedef Documentation

typedef TransientTrackingRecHit::ConstRecHitPointer ElectronSeedGenerator::ConstRecHitPointer

Definition at line 53 of file ElectronSeedGenerator.h.

typedef edm::OwnVector<TrackingRecHit> ElectronSeedGenerator::PRecHitContainer

Definition at line 52 of file ElectronSeedGenerator.h.

typedef TransientTrackingRecHit::RecHitContainer ElectronSeedGenerator::RecHitContainer

Definition at line 55 of file ElectronSeedGenerator.h.

typedef TransientTrackingRecHit::RecHitPointer ElectronSeedGenerator::RecHitPointer

Definition at line 54 of file ElectronSeedGenerator.h.

Constructor & Destructor Documentation

ElectronSeedGenerator::ElectronSeedGenerator ( const edm::ParameterSet &  pset)

Definition at line 46 of file ElectronSeedGenerator.cc.

References beamSpotTag_, deltaPhi1Coef1_, deltaPhi1Coef2_, deltaPhi1High_, deltaPhi1Low_, deltaPhi2B_, deltaPhi2F_, deltaZ1WithVertex_, dynamicphiroad_, edm::ParameterSet::exists(), edm::ParameterSet::getParameter(), highPtThreshold_, lowPtThreshold_, myMatchEle, myMatchPos, phiMax2B_, phiMax2F_, phiMin2B_, phiMin2F_, theMeasurementTrackerName, theUpdator, useRecoVertex_, and verticesTag_.

 : dynamicphiroad_(pset.getParameter<bool>("dynamicPhiRoad")),
   fromTrackerSeeds_(pset.getParameter<bool>("fromTrackerSeeds")),
   useRecoVertex_(false),
   verticesTag_("offlinePrimaryVerticesWithBS"),
   beamSpotTag_("offlineBeamSpot"),
   lowPtThreshold_(pset.getParameter<double>("LowPtThreshold")),
   highPtThreshold_(pset.getParameter<double>("HighPtThreshold")),
   nSigmasDeltaZ1_(pset.getParameter<double>("nSigmasDeltaZ1")),
   deltaZ1WithVertex_(0.5),
   sizeWindowENeg_(pset.getParameter<double>("SizeWindowENeg")),
   deltaPhi1Low_(pset.getParameter<double>("DeltaPhi1Low")),
   deltaPhi1High_(pset.getParameter<double>("DeltaPhi1High")),
   deltaPhi1Coef1_(0.), deltaPhi1Coef2_(0.),
   myMatchEle(0), myMatchPos(0),
   thePropagator(0),
   theMeasurementTracker(0),
   theSetup(0), pts_(0),
   cacheIDMagField_(0),/*cacheIDGeom_(0),*/cacheIDNavSchool_(0),cacheIDCkfComp_(0),cacheIDTrkGeom_(0)
 {
  // so that deltaPhi1 = deltaPhi1Coef1_ + deltaPhi1Coef2_/clusterEnergyT
  if (dynamicphiroad_)
   {
    deltaPhi1Coef2_ = (deltaPhi1Low_-deltaPhi1High_)/(1./lowPtThreshold_-1./highPtThreshold_) ;
    deltaPhi1Coef1_ = deltaPhi1Low_ - deltaPhi1Coef2_/lowPtThreshold_ ;
   }

  // use of a theMeasurementTrackerName
  if (pset.exists("measurementTrackerName"))
   { theMeasurementTrackerName = pset.getParameter<std::string>("measurementTrackerName") ; }

  // use of reco vertex
  if (pset.exists("useRecoVertex"))
   { useRecoVertex_ = pset.getParameter<bool>("useRecoVertex") ; }
  if (pset.exists("vertices"))
   { verticesTag_ = pset.getParameter<edm::InputTag>("vertices") ; }
  if (pset.exists("deltaZ1WithVertex"))
   { deltaZ1WithVertex_ = pset.getParameter<double>("deltaZ1WithVertex") ; }

  // new beamSpot tag
  if (pset.exists("beamSpot"))
   { beamSpotTag_ = pset.getParameter<edm::InputTag>("beamSpot") ; }

  // new B/F configurables
  if (pset.exists("DeltaPhi2"))
   { deltaPhi2B_ = deltaPhi2F_ = pset.getParameter<double>("DeltaPhi2") ; }
  else
   {
    deltaPhi2B_ = pset.getParameter<double>("DeltaPhi2B") ;
    deltaPhi2F_ = pset.getParameter<double>("DeltaPhi2F") ;
   }
  if (pset.exists("PhiMin2"))
   { phiMin2B_ = phiMin2F_ = pset.getParameter<double>("PhiMin2") ; }
  else
   {
    phiMin2B_ = pset.getParameter<double>("PhiMin2B") ;
    phiMin2F_ = pset.getParameter<double>("PhiMin2F") ;
   }
  if (pset.exists("PhiMax2"))
   { phiMax2B_ = phiMax2F_ = pset.getParameter<double>("PhiMax2") ; }
  else
   {
    phiMax2B_ = pset.getParameter<double>("PhiMax2B") ;
    phiMax2F_ = pset.getParameter<double>("PhiMax2F") ;
   }

  // Instantiate the pixel hit matchers
  myMatchEle = new PixelHitMatcher
   ( pset.getParameter<double>("ePhiMin1"),
                 pset.getParameter<double>("ePhiMax1"),
                 phiMin2B_, phiMax2B_, phiMin2F_, phiMax2F_,
     pset.getParameter<double>("z2MinB"),
     pset.getParameter<double>("z2MaxB"),
     pset.getParameter<double>("r2MinF"),
     pset.getParameter<double>("r2MaxF"),
     pset.getParameter<double>("rMinI"),
     pset.getParameter<double>("rMaxI"),
     pset.getParameter<bool>("searchInTIDTEC") ) ;

  myMatchPos = new PixelHitMatcher
   ( pset.getParameter<double>("pPhiMin1"),
                 pset.getParameter<double>("pPhiMax1"),
                 phiMin2B_, phiMax2B_, phiMin2F_, phiMax2F_,
     pset.getParameter<double>("z2MinB"),
     pset.getParameter<double>("z2MaxB"),
     pset.getParameter<double>("r2MinF"),
     pset.getParameter<double>("r2MaxF"),
     pset.getParameter<double>("rMinI"),
     pset.getParameter<double>("rMaxI"),
     pset.getParameter<bool>("searchInTIDTEC") ) ;

  theUpdator = new KFUpdator() ;
 }
ElectronSeedGenerator::~ElectronSeedGenerator ( )

Definition at line 140 of file ElectronSeedGenerator.cc.

References myMatchEle, myMatchPos, thePropagator, and theUpdator.

 {
  delete myMatchEle ;
  delete myMatchPos ;
  delete thePropagator ;
  delete theUpdator ;
 }

Member Function Documentation

void ElectronSeedGenerator::addSeed ( reco::ElectronSeed &  seed,
const SeedWithInfo *  info,
bool  positron,
reco::ElectronSeedCollection &  out 
) [private]

Definition at line 470 of file ElectronSeedGenerator.cc.

References reco::ElectronSeed::caloCluster(), SeedWithInfo::dPhi1(), reco::ElectronSeed::dPhi2(), SeedWithInfo::dPhi2(), reco::ElectronSeed::dPhi2Pos(), SeedWithInfo::dRz1(), SeedWithInfo::dRz2(), reco::ElectronSeed::dRz2(), reco::ElectronSeed::dRz2Pos(), equivalent(), reco::ElectronSeed::hitsMask(), infinity, reco::ElectronSeed::setNegAttributes(), and reco::ElectronSeed::setPosAttributes().

 {
  if (!info)
   { out.push_back(seed) ; return ; }

  if (positron)
   { seed.setPosAttributes(info->dRz2(),info->dPhi2(),info->dRz1(),info->dPhi1()) ; }
  else
   { seed.setNegAttributes(info->dRz2(),info->dPhi2(),info->dRz1(),info->dPhi1()) ; }
  reco::ElectronSeedCollection::iterator resItr ;
  for ( resItr=out.begin() ; resItr!=out.end() ; ++resItr )
   {
    if ( (seed.caloCluster()==resItr->caloCluster()) &&
         (seed.hitsMask()==resItr->hitsMask()) &&
         equivalent(seed,*resItr) )
     {
      if (positron)
       {
        if ( resItr->dRz2Pos()==std::numeric_limits<float>::infinity() &&
             resItr->dRz2()!=std::numeric_limits<float>::infinity() )
         {
          resItr->setPosAttributes(info->dRz2(),info->dPhi2(),info->dRz1(),info->dPhi1()) ;
          seed.setNegAttributes(resItr->dRz2(),resItr->dPhi2(),resItr->dRz1(),resItr->dPhi1()) ;
          break ;
         }
        else
         {
          if ( resItr->dRz2Pos()!=std::numeric_limits<float>::infinity() )
           {
            if ( resItr->dRz2Pos()!=seed.dRz2Pos() )
             {
              edm::LogWarning("ElectronSeedGenerator|BadValue")
               <<"this similar old seed already has another dRz2Pos"
               <<"\nold seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)resItr->hitsMask()<<"/"<<resItr->dRz2()<<"/"<<resItr->dPhi2()<<"/"<<resItr->dRz2Pos()<<"/"<<resItr->dPhi2Pos()
               <<"\nnew seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)seed.hitsMask()<<"/"<<seed.dRz2()<<"/"<<seed.dPhi2()<<"/"<<seed.dRz2Pos()<<"/"<<seed.dPhi2Pos() ;
             }
//            else
//             {
//              edm::LogWarning("ElectronSeedGenerator|UnexpectedValue")
//               <<"this old seed already knows its dRz2Pos, we suspect duplicates in input trajectry seeds"
//               <<"\nold seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)resItr->hitsMask()<<"/"<<resItr->dRz2()<<"/"<<resItr->dPhi2()<<"/"<<resItr->dRz2Pos()<<"/"<<resItr->dPhi2Pos()
//               <<"\nnew seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)seed.hitsMask()<<"/"<<seed.dRz2()<<"/"<<seed.dPhi2()<<"/"<<seed.dRz2Pos()<<"/"<<seed.dPhi2Pos() ;
//             }
            }
//          if (resItr->dRz2()==std::numeric_limits<float>::infinity())
//           {
//            edm::LogWarning("ElectronSeedGenerator|BadValue")
//             <<"this old seed has no dRz2, we suspect duplicates in input trajectry seeds"
//             <<"\nold seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)resItr->hitsMask()<<"/"<<resItr->dRz2()<<"/"<<resItr->dPhi2()<<"/"<<resItr->dRz2Pos()<<"/"<<resItr->dPhi2Pos()
//             <<"\nnew seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)seed.hitsMask()<<"/"<<seed.dRz2()<<"/"<<seed.dPhi2()<<"/"<<seed.dRz2Pos()<<"/"<<seed.dPhi2Pos() ;
//           }
         }
       }
      else
       {
        if ( resItr->dRz2()==std::numeric_limits<float>::infinity()
          && resItr->dRz2Pos()!=std::numeric_limits<float>::infinity() )
         {
          resItr->setNegAttributes(info->dRz2(),info->dPhi2(),info->dRz1(),info->dPhi1()) ;
          seed.setPosAttributes(resItr->dRz2Pos(),resItr->dPhi2Pos(),resItr->dRz1Pos(),resItr->dPhi1Pos()) ;
          break ;
         }
        else
         {
          if ( resItr->dRz2()!=std::numeric_limits<float>::infinity() )
           {
            if (resItr->dRz2()!=seed.dRz2())
             {
              edm::LogWarning("ElectronSeedGenerator|BadValue")
               <<"this old seed already has another dRz2"
               <<"\nold seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)resItr->hitsMask()<<"/"<<resItr->dRz2()<<"/"<<resItr->dPhi2()<<"/"<<resItr->dRz2Pos()<<"/"<<resItr->dPhi2Pos()
               <<"\nnew seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)seed.hitsMask()<<"/"<<seed.dRz2()<<"/"<<seed.dPhi2()<<"/"<<seed.dRz2Pos()<<"/"<<seed.dPhi2Pos() ;
             }
    //        else
    //         {
    //          edm::LogWarning("ElectronSeedGenerator|UnexpectedValue")
    //           <<"this old seed already knows its dRz2, we suspect duplicates in input trajectry seeds"
    //           <<"\nold seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)resItr->hitsMask()<<"/"<<resItr->dRz2()<<"/"<<resItr->dPhi2()<<"/"<<resItr->dRz2Pos()<<"/"<<resItr->dPhi2Pos()
    //           <<"\nnew seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)seed.hitsMask()<<"/"<<seed.dRz2()<<"/"<<seed.dPhi2()<<"/"<<seed.dRz2Pos()<<"/"<<seed.dPhi2Pos() ;
    //          seed.setPosAttributes(resItr->dRz2Pos(),resItr->dPhi2Pos(),resItr->dRz1Pos(),resItr->dPhi1Pos()) ;
    //         }
           }
//          if (resItr->dRz2Pos()==std::numeric_limits<float>::infinity())
//           {
//            edm::LogWarning("ElectronSeedGenerator|BadValue")
//             <<"this old seed has no dRz2Pos"
//             <<"\nold seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)resItr->hitsMask()<<"/"<<resItr->dRz2()<<"/"<<resItr->dPhi2()<<"/"<<resItr->dRz2Pos()<<"/"<<resItr->dPhi2Pos()
//             <<"\nnew seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)seed.hitsMask()<<"/"<<seed.dRz2()<<"/"<<seed.dPhi2()<<"/"<<seed.dRz2Pos()<<"/"<<seed.dPhi2Pos() ;
//           }
         }
       }
     }
   }

  out.push_back(seed) ;
 }
bool ElectronSeedGenerator::prepareElTrackSeed ( ConstRecHitPointer  outerhit,
ConstRecHitPointer  innerhit,
const GlobalPoint &  vertexPos 
) [private]

Definition at line 571 of file ElectronSeedGenerator.cc.

References TrajectoryStateOnSurface::globalMomentum(), TrajectoryStateOnSurface::globalPosition(), TrajectoryStateOnSurface::isValid(), LogDebug, and PV3DBase< T, PVType, FrameType >::perp().

 {

  // debug prints
  LogDebug("") <<"[ElectronSeedGenerator::prepareElTrackSeed] inner PixelHit   x,y,z "<<innerhit->globalPosition();
  LogDebug("") <<"[ElectronSeedGenerator::prepareElTrackSeed] outer PixelHit   x,y,z "<<outerhit->globalPosition();

  pts_=0;
  recHits_.clear();

  SiPixelRecHit *pixhit=0;
  SiStripMatchedRecHit2D *striphit=0;
  const SiPixelRecHit* constpixhit = dynamic_cast <const SiPixelRecHit*> (innerhit->hit());
  if (constpixhit) {
    pixhit=new SiPixelRecHit(*constpixhit);
    recHits_.push_back(pixhit);
  } else  return false;
  constpixhit =  dynamic_cast <const SiPixelRecHit *> (outerhit->hit());
  if (constpixhit) {
    pixhit=new SiPixelRecHit(*constpixhit);
    recHits_.push_back(pixhit);
  } else {
    const SiStripMatchedRecHit2D * conststriphit=dynamic_cast <const SiStripMatchedRecHit2D *> (outerhit->hit());
    if (conststriphit) {
      striphit = new SiStripMatchedRecHit2D(*conststriphit);
      recHits_.push_back(striphit);
    } else return false;
  }

  typedef TrajectoryStateOnSurface     TSOS;

  // make a spiral
  FastHelix helix(outerhit->globalPosition(),innerhit->globalPosition(),vertexPos,*theSetup);
  if ( !helix.isValid()) {
    return false;
  }
  FreeTrajectoryState fts = helix.stateAtVertex();
  TSOS propagatedState = thePropagator->propagate(fts,innerhit->det()->surface()) ;
  if (!propagatedState.isValid())
    return false;
  TSOS updatedState = theUpdator->update(propagatedState, *innerhit);

  TSOS propagatedState_out = thePropagator->propagate(updatedState,outerhit->det()->surface()) ;
  if (!propagatedState_out.isValid())
    return false;
  TSOS updatedState_out = theUpdator->update(propagatedState_out, *outerhit);
  // debug prints
  LogDebug("") <<"[ElectronSeedGenerator::prepareElTrackSeed] final TSOS, position: "<<updatedState_out.globalPosition()<<" momentum: "<<updatedState_out.globalMomentum();
  LogDebug("") <<"[ElectronSeedGenerator::prepareElTrackSeed] final TSOS Pt: "<<updatedState_out.globalMomentum().perp();
  pts_ =  transformer_.persistentState(updatedState_out, outerhit->geographicalId().rawId());

  return true;
 }
void ElectronSeedGenerator::run ( edm::Event &  e,
const edm::EventSetup &  setup,
const reco::SuperClusterRefVector &  sclRefs,
const std::vector< float > &  hoe1s,
const std::vector< float > &  hoe2s,
TrajectorySeedCollection *  seeds,
reco::ElectronSeedCollection &  out 
)

Definition at line 223 of file ElectronSeedGenerator.cc.

References edm::Event::getByLabel(), i, edm::EventBase::id(), LogDebug, HcalObjRepresent::setup(), and edm::RefVector< C, T, F >::size().

Referenced by ElectronSeedProducer::produce().

 {
  theInitialSeedColl = seeds ;
//  bool duplicateTrajectorySeeds =false ;
//  unsigned int i,j ;
//  for (i=0;i<seeds->size();++i)
//    for (j=i+1;j<seeds->size();++j)
//     {
//      const TrajectorySeed & s1 =(*seeds)[i] ;
//      const TrajectorySeed & s2 =(*seeds)[j] ;
//      if ( equivalent(s1,s2) )
//       {
//        const PTrajectoryStateOnDet & ss1 = s1.startingState() ;
//        const LocalTrajectoryParameters & p1 = ss1.parameters() ;
//        const PTrajectoryStateOnDet & ss2 = s2.startingState() ;
//        const LocalTrajectoryParameters & p2 = ss2.parameters() ;
//        duplicateTrajectorySeeds = true ;
//        std::cout<<"Same hits for "
//          <<"\n  s["<<i<<"] ("<<s1.direction()<<"/"<<ss1.detId()<<"/"<<ss1.surfaceSide()<<"/"<<p1.charge()<<"/"<<p1.position()<<"/"<<p1.momentum()<<")"
//          <<"\n  s["<<j<<"] ("<<s2.direction()<<"/"<<ss2.detId()<<"/"<<ss2.surfaceSide()<<"/"<<p2.charge()<<"/"<<p2.position()<<"/"<<p2.momentum()<<")"
//          <<std::endl ;
//       }
//     }
//  if (duplicateTrajectorySeeds)
//   { edm::LogWarning("ElectronSeedGenerator|DuplicateTrajectorySeeds")<<"We see several identical trajectory seeds." ; }


  theSetup= &setup;
  NavigationSetter theSetter(*theNavigationSchool);

  // get initial TrajectorySeeds if necessary
  //  if (fromTrackerSeeds_) e.getByLabel(initialSeeds_, theInitialSeedColl);

  // get the beamspot from the Event:
  //e.getByType(theBeamSpot);
  e.getByLabel(beamSpotTag_,theBeamSpot);

  // if required get the vertices
  if (useRecoVertex_) e.getByLabel(verticesTag_,theVertices);

  if (!fromTrackerSeeds_)
   { theMeasurementTracker->update(e) ; }

  for  (unsigned int i=0;i<sclRefs.size();++i) {
    // Find the seeds
    recHits_.clear();

    LogDebug ("run") << "new cluster, calling seedsFromThisCluster";
    seedsFromThisCluster(sclRefs[i],hoe1s[i],hoe2s[i],out);
  }

  LogDebug ("run") << ": For event "<<e.id();
  LogDebug ("run") <<"Nr of superclusters after filter: "<<sclRefs.size()
   <<", no. of ElectronSeeds found  = " << out.size();
}
void ElectronSeedGenerator::seedsFromRecHits ( std::vector< std::pair< RecHitWithDist, ConstRecHitPointer > > &  elePixelHits,
PropagationDirection &  dir,
const GlobalPoint &  vertexPos,
const reco::ElectronSeed::CaloClusterRef &  cluster,
reco::ElectronSeedCollection &  out,
bool  positron 
) [private]

Definition at line 426 of file ElectronSeedGenerator.cc.

References LogDebug, reco::ElectronSeed::setCaloCluster(), and v.

 {
  if (!pixelHits.empty())
   { LogDebug("ElectronSeedGenerator") << "Compatible "<<(positron?"positron":"electron")<<" hits found." ; }

  std::vector<std::pair<RecHitWithDist,ConstRecHitPointer> >::iterator v ;
  for ( v = pixelHits.begin() ; v != pixelHits.end() ; v++ )
   {
    if (!positron)
     { (*v).first.invert() ; }
    if (!prepareElTrackSeed((*v).first.recHit(),(*v).second,vertexPos))
     { continue ; }
    reco::ElectronSeed seed(*pts_,recHits_,dir) ;
    seed.setCaloCluster(cluster) ;
    addSeed(seed,0,positron,out) ;
    delete pts_;
    pts_=0;
   }
 }
void ElectronSeedGenerator::seedsFromThisCluster ( edm::Ref< reco::SuperClusterCollection >  seedCluster,
float  hoe1,
float  hoe2,
reco::ElectronSeedCollection &  out 
) [private]

Definition at line 282 of file ElectronSeedGenerator.cc.

References alongMomentum, dir, ele_convert(), eta(), and mathSSE::sqrt().

{
  float clusterEnergy = seedCluster->energy() ;
  GlobalPoint clusterPos
    ( seedCluster->position().x(),
      seedCluster->position().y(),
      seedCluster->position().z() ) ;
  reco::ElectronSeed::CaloClusterRef caloCluster(seedCluster) ;

  //LogDebug("") << "[ElectronSeedGenerator::seedsFromThisCluster] new supercluster with energy: " << clusterEnergy ;
  //LogDebug("") << "[ElectronSeedGenerator::seedsFromThisCluster] and position: " << clusterPos ;

  if (dynamicphiroad_)
   {
    float clusterEnergyT = clusterEnergy / cosh( EleRelPoint(clusterPos,theBeamSpot->position()).eta() ) ;

    float deltaPhi1 ;
    if (clusterEnergyT < lowPtThreshold_)
     { deltaPhi1= deltaPhi1Low_ ; }
    else if (clusterEnergyT > highPtThreshold_)
     { deltaPhi1= deltaPhi1High_ ; }
    else
     { deltaPhi1 = deltaPhi1Coef1_ + deltaPhi1Coef2_/clusterEnergyT ; }

    float ephimin1 = -deltaPhi1*sizeWindowENeg_ ;
    float ephimax1 =  deltaPhi1*(1.-sizeWindowENeg_);
    float pphimin1 = -deltaPhi1*(1.-sizeWindowENeg_);
    float pphimax1 =  deltaPhi1*sizeWindowENeg_;

    float phimin2B  = -deltaPhi2B_/2. ;
    float phimax2B  =  deltaPhi2B_/2. ;
    float phimin2F  = -deltaPhi2F_/2. ;
    float phimax2F  =  deltaPhi2F_/2. ;


    myMatchEle->set1stLayer(ephimin1,ephimax1);
    myMatchPos->set1stLayer(pphimin1,pphimax1);
    myMatchEle->set2ndLayer(phimin2B,phimax2B, phimin2F,phimax2F);
    myMatchPos->set2ndLayer(phimin2B,phimax2B, phimin2F,phimax2F);
   }

  PropagationDirection dir = alongMomentum ;

  if (!useRecoVertex_) // here use the beam spot position
   {
    double sigmaZ=theBeamSpot->sigmaZ();
    double sigmaZ0Error=theBeamSpot->sigmaZ0Error();
    double sq=sqrt(sigmaZ*sigmaZ+sigmaZ0Error*sigmaZ0Error);
    double myZmin1=theBeamSpot->position().z()-nSigmasDeltaZ1_*sq;
    double myZmax1=theBeamSpot->position().z()+nSigmasDeltaZ1_*sq;

    GlobalPoint vertexPos ;
    ele_convert(theBeamSpot->position(),vertexPos) ;

    myMatchEle->set1stLayerZRange(myZmin1,myZmax1);
    myMatchPos->set1stLayerZRange(myZmin1,myZmax1);

    if (!fromTrackerSeeds_)
     {
      // try electron
      std::vector<std::pair<RecHitWithDist,ConstRecHitPointer> > elePixelHits
       = myMatchEle->compatibleHits(clusterPos,vertexPos,clusterEnergy,-1.) ;
      GlobalPoint eleVertex(theBeamSpot->position().x(),theBeamSpot->position().y(),myMatchEle->getVertex()) ;
      seedsFromRecHits(elePixelHits,dir,eleVertex,caloCluster,out,false) ;
      // try positron
      std::vector<std::pair<RecHitWithDist,ConstRecHitPointer> > posPixelHits
       = myMatchPos->compatibleHits(clusterPos,vertexPos,clusterEnergy,1.) ;
      GlobalPoint posVertex(theBeamSpot->position().x(),theBeamSpot->position().y(),myMatchPos->getVertex()) ;
      seedsFromRecHits(posPixelHits,dir,posVertex,caloCluster,out,true) ;
     }
    else
     {
      // try electron
      std::vector<SeedWithInfo> elePixelSeeds
       = myMatchEle->compatibleSeeds(theInitialSeedColl,clusterPos,vertexPos,clusterEnergy,-1.) ;
      seedsFromTrajectorySeeds(elePixelSeeds,caloCluster,hoe1,hoe2,out,false) ;
      // try positron
      std::vector<SeedWithInfo> posPixelSeeds
       = myMatchPos->compatibleSeeds(theInitialSeedColl,clusterPos,vertexPos,clusterEnergy,1.) ;
      seedsFromTrajectorySeeds(posPixelSeeds,caloCluster,hoe1,hoe2,out,true) ;
     }

   }
  else // here we use the reco vertices
   {

    myMatchEle->setUseRecoVertex(true) ; //Hit matchers need to know that the vertex is known
    myMatchPos->setUseRecoVertex(true) ;

    const  std::vector<reco::Vertex> * vtxCollection = theVertices.product() ;
    std::vector<reco::Vertex>::const_iterator vtxIter ;
    for (vtxIter = vtxCollection->begin(); vtxIter != vtxCollection->end() ; vtxIter++)
     {

      GlobalPoint vertexPos(vtxIter->position().x(),vtxIter->position().y(),vtxIter->position().z());
      double myZmin1, myZmax1 ;
      if (vertexPos.z()==theBeamSpot->position().z())
       { // in case vetex not found
        double sigmaZ=theBeamSpot->sigmaZ();
        double sigmaZ0Error=theBeamSpot->sigmaZ0Error();
        double sq=sqrt(sigmaZ*sigmaZ+sigmaZ0Error*sigmaZ0Error);
        myZmin1=theBeamSpot->position().z()-nSigmasDeltaZ1_*sq;
        myZmax1=theBeamSpot->position().z()+nSigmasDeltaZ1_*sq;
       }
      else
       { // a vertex has been recoed
        myZmin1=vtxIter->position().z()-deltaZ1WithVertex_;
        myZmax1=vtxIter->position().z()+deltaZ1WithVertex_;
       }

      myMatchEle->set1stLayerZRange(myZmin1,myZmax1);
      myMatchPos->set1stLayerZRange(myZmin1,myZmax1);

      if (!fromTrackerSeeds_)
       {
        // try electron
        std::vector<std::pair<RecHitWithDist,ConstRecHitPointer> > elePixelHits
         = myMatchEle->compatibleHits(clusterPos,vertexPos,clusterEnergy,-1.) ;
        seedsFromRecHits(elePixelHits,dir,vertexPos,caloCluster,out,false) ;
        // try positron
              std::vector<std::pair<RecHitWithDist,ConstRecHitPointer> > posPixelHits
               = myMatchPos->compatibleHits(clusterPos,vertexPos,clusterEnergy,1.) ;
        seedsFromRecHits(posPixelHits,dir,vertexPos,caloCluster,out,true) ;
       }
      else
       {
        // try electron
        std::vector<SeedWithInfo> elePixelSeeds
         = myMatchEle->compatibleSeeds(theInitialSeedColl,clusterPos,vertexPos,clusterEnergy,-1.) ;
        seedsFromTrajectorySeeds(elePixelSeeds,caloCluster,hoe1,hoe2,out,false) ;
        // try positron
        std::vector<SeedWithInfo> posPixelSeeds
         = myMatchPos->compatibleSeeds(theInitialSeedColl,clusterPos,vertexPos,clusterEnergy,1.) ;
        seedsFromTrajectorySeeds(posPixelSeeds,caloCluster,hoe1,hoe2,out,true) ;
       }
     }
   }

  return ;
 }
void ElectronSeedGenerator::seedsFromTrajectorySeeds ( const std::vector< SeedWithInfo > &  elePixelSeeds,
const reco::ElectronSeed::CaloClusterRef &  cluster,
float  hoe1,
float  hoe2,
reco::ElectronSeedCollection &  out,
bool  positron 
) [private]

Definition at line 451 of file ElectronSeedGenerator.cc.

References LogDebug, asciidump::s, and reco::ElectronSeed::setCaloCluster().

 {
  if (!pixelSeeds.empty())
   { LogDebug("ElectronSeedGenerator") << "Compatible "<<(positron?"positron":"electron")<<" seeds found." ; }

  std::vector<SeedWithInfo>::const_iterator s;
  for ( s = pixelSeeds.begin() ; s != pixelSeeds.end() ; s++ )
   {
    reco::ElectronSeed seed(s->seed()) ;
    seed.setCaloCluster(cluster,s->hitsMask(),s->subDet2(),s->subDet1(),hoe1,hoe2) ;
    addSeed(seed,&*s,positron,out) ;
   }
 }
void ElectronSeedGenerator::setupES ( const edm::EventSetup &  setup)

Definition at line 148 of file ElectronSeedGenerator.cc.

References alongMomentum, cacheIDCkfComp_, edm::eventsetup::EventSetupRecord::cacheIdentifier(), cacheIDMagField_, cacheIDNavSchool_, cacheIDTrkGeom_, fromTrackerSeeds_, edm::EventSetup::get(), myMatchEle, myMatchPos, edm::ESHandle< T >::product(), PixelHitMatcher::setES(), theMagField, theMeasurementTracker, theMeasurementTrackerName, theNavigationSchool, thePropagator, and theTrackerGeometry.

Referenced by ElectronSeedProducer::produce().

                                                              {

  // get records if necessary (called once per event)
  bool tochange=false;

  if (cacheIDMagField_!=setup.get<IdealMagneticFieldRecord>().cacheIdentifier()) {
    setup.get<IdealMagneticFieldRecord>().get(theMagField);
    cacheIDMagField_=setup.get<IdealMagneticFieldRecord>().cacheIdentifier();
    if (thePropagator) delete thePropagator;
    thePropagator = new PropagatorWithMaterial(alongMomentum,.000511,&(*theMagField));
    tochange=true;
  }

  if (!fromTrackerSeeds_ && cacheIDCkfComp_!=setup.get<CkfComponentsRecord>().cacheIdentifier()) {
    edm::ESHandle<MeasurementTracker> measurementTrackerHandle;
    setup.get<CkfComponentsRecord>().get(theMeasurementTrackerName,measurementTrackerHandle);
    cacheIDCkfComp_=setup.get<CkfComponentsRecord>().cacheIdentifier();
    theMeasurementTracker = measurementTrackerHandle.product();
    tochange=true;
  }

  //edm::ESHandle<TrackerGeometry> trackerGeometryHandle;
  if (cacheIDTrkGeom_!=setup.get<TrackerDigiGeometryRecord>().cacheIdentifier()) {
    cacheIDTrkGeom_=setup.get<TrackerDigiGeometryRecord>().cacheIdentifier();
    setup.get<TrackerDigiGeometryRecord>().get(theTrackerGeometry);
    tochange=true; //FIXME
  }

  if (tochange) {
    myMatchEle->setES(&(*theMagField),theMeasurementTracker,theTrackerGeometry.product());
    myMatchPos->setES(&(*theMagField),theMeasurementTracker,theTrackerGeometry.product());
  }

  if (cacheIDNavSchool_!=setup.get<NavigationSchoolRecord>().cacheIdentifier()) {
    edm::ESHandle<NavigationSchool> nav;
    setup.get<NavigationSchoolRecord>().get("SimpleNavigationSchool", nav);
    cacheIDNavSchool_=setup.get<NavigationSchoolRecord>().cacheIdentifier();
    theNavigationSchool = nav.product();
  }

//  if (cacheIDGeom_!=setup.get<TrackerRecoGeometryRecord>().cacheIdentifier()) {
//    setup.get<TrackerRecoGeometryRecord>().get( theGeomSearchTracker );
//    cacheIDGeom_=setup.get<TrackerRecoGeometryRecord>().cacheIdentifier();
//  }

}

Member Data Documentation

edm::InputTag ElectronSeedGenerator::beamSpotTag_ [private]

Definition at line 82 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

unsigned long long ElectronSeedGenerator::cacheIDCkfComp_ [private]

Definition at line 127 of file ElectronSeedGenerator.h.

Referenced by setupES().

unsigned long long ElectronSeedGenerator::cacheIDMagField_ [private]

Definition at line 124 of file ElectronSeedGenerator.h.

Referenced by setupES().

unsigned long long ElectronSeedGenerator::cacheIDNavSchool_ [private]

Definition at line 126 of file ElectronSeedGenerator.h.

Referenced by setupES().

unsigned long long ElectronSeedGenerator::cacheIDTrkGeom_ [private]

Definition at line 128 of file ElectronSeedGenerator.h.

Referenced by setupES().

double ElectronSeedGenerator::deltaPhi1Coef1_ [private]

Definition at line 98 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

double ElectronSeedGenerator::deltaPhi1Coef2_ [private]

Definition at line 99 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::deltaPhi1High_ [private]

Definition at line 93 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::deltaPhi1Low_ [private]

Definition at line 93 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::deltaPhi2B_ [private]

Definition at line 94 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::deltaPhi2F_ [private]

Definition at line 95 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::deltaZ1WithVertex_ [private]

Definition at line 87 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

bool ElectronSeedGenerator::dynamicphiroad_ [private]

Definition at line 74 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

bool ElectronSeedGenerator::fromTrackerSeeds_ [private]

Definition at line 75 of file ElectronSeedGenerator.h.

Referenced by setupES().

float ElectronSeedGenerator::highPtThreshold_ [private]

Definition at line 85 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::lowPtThreshold_ [private]

Definition at line 84 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

PixelHitMatcher* ElectronSeedGenerator::myMatchEle [private]

Definition at line 101 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator(), setupES(), and ~ElectronSeedGenerator().

PixelHitMatcher* ElectronSeedGenerator::myMatchPos [private]

Definition at line 102 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator(), setupES(), and ~ElectronSeedGenerator().

float ElectronSeedGenerator::nSigmasDeltaZ1_ [private]

Definition at line 86 of file ElectronSeedGenerator.h.

float ElectronSeedGenerator::phiMax2B_ [private]

Definition at line 90 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::phiMax2F_ [private]

Definition at line 92 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::phiMin2B_ [private]

Definition at line 89 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::phiMin2F_ [private]

Definition at line 91 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

PTrajectoryStateOnDet* ElectronSeedGenerator::pts_ [private]

Definition at line 121 of file ElectronSeedGenerator.h.

PRecHitContainer ElectronSeedGenerator::recHits_ [private]

Definition at line 120 of file ElectronSeedGenerator.h.

float ElectronSeedGenerator::sizeWindowENeg_ [private]

Definition at line 88 of file ElectronSeedGenerator.h.

edm::Handle<reco::BeamSpot> ElectronSeedGenerator::theBeamSpot [private]

Definition at line 81 of file ElectronSeedGenerator.h.

TrajectorySeedCollection* ElectronSeedGenerator::theInitialSeedColl [private]

Definition at line 105 of file ElectronSeedGenerator.h.

edm::ESHandle<MagneticField> ElectronSeedGenerator::theMagField [private]

Definition at line 107 of file ElectronSeedGenerator.h.

Referenced by setupES().

const MeasurementTracker* ElectronSeedGenerator::theMeasurementTracker [private]

Definition at line 114 of file ElectronSeedGenerator.h.

Referenced by setupES().

std::string ElectronSeedGenerator::theMeasurementTrackerName [private]

Definition at line 113 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator(), and setupES().

const NavigationSchool* ElectronSeedGenerator::theNavigationSchool [private]

Definition at line 115 of file ElectronSeedGenerator.h.

Referenced by setupES().

PropagatorWithMaterial* ElectronSeedGenerator::thePropagator [private]

Definition at line 111 of file ElectronSeedGenerator.h.

Referenced by setupES(), and ~ElectronSeedGenerator().

const edm::EventSetup* ElectronSeedGenerator::theSetup [private]

Definition at line 117 of file ElectronSeedGenerator.h.

edm::ESHandle<TrackerGeometry> ElectronSeedGenerator::theTrackerGeometry [private]

Definition at line 108 of file ElectronSeedGenerator.h.

Referenced by setupES().

KFUpdator* ElectronSeedGenerator::theUpdator [private]

Definition at line 110 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator(), and ~ElectronSeedGenerator().

edm::Handle<std::vector<reco::Vertex> > ElectronSeedGenerator::theVertices [private]

Definition at line 78 of file ElectronSeedGenerator.h.

TrajectoryStateTransform ElectronSeedGenerator::transformer_ [private]

Definition at line 118 of file ElectronSeedGenerator.h.

bool ElectronSeedGenerator::useRecoVertex_ [private]

Definition at line 77 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

edm::InputTag ElectronSeedGenerator::verticesTag_ [private]

Definition at line 79 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

Generated for CMSSW Reference Manual by doxygen 1.7.3